The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 25, 2017
Filed:
Nov. 25, 2011
Jesper Lykkegaard Neubauer, Hornslet, DK;
Ole Mølgaard Jeppesen, Skjern, DK;
Robert Rowntree, Cheshire, GB;
Leif Christoffersen, Vejle Ø, DK;
Peter Bøttcher, Aarhus N, DK;
Gerry Madden, Leighton Buzzard, GB;
Jesper Lykkegaard Neubauer, Hornslet, DK;
Ole Mølgaard Jeppesen, Skjern, DK;
Robert Rowntree, Cheshire, GB;
Leif Christoffersen, Vejle Ø, DK;
Peter Bøttcher, Aarhus N, DK;
Gerry Madden, Leighton Buzzard, GB;
Vestas Wind Systems A/S, Aarhus N., DK;
Abstract
A pitch system () for rotating a blade () of a wind turbine relative to a hub () generally comprises a bearing () having an inner bearing ring () configured to be mounted to the hub and an outer bearing ring () configured to be mounted to the blade. A first coupling member () positioned between the hub and inner bearing ring extends radially inward. A second coupling member () positioned between the blade and outer bearing ring extends radially inward and over the inner bearing ring. A drive system () includes a first drive member () coupled to the first coupling member and a first driven member () coupled to the second coupling member. The first drive member is configured to move the first driven member to rotate the outer bearing ring relative to the inner bearing ring and thereby pitch the blade.